Sebdenia flabellata   (J. Agardh) P. G. Parkinson,  1980 (Algae)
Organism information awaits expert curation
Class: Florideophyceae

Color: Pink, rose-red to brown

Thallus gelatinous, slippery, soft, 4-30 cm high. Main axis often pinched at base near discoid holdfast, broadening distally into cylindrical to slightly flattened pseudodichotomous branches 3-10 mm in diameter. Branches tapering terminally into blunt-tipped forks, 1-3 mm wide. Medullary filaments longitudinal, loosely arranged and entangled, 3-10 μm diam., radiating from stellate cells, 18-40 μm diam. Gland cells are commonly borne on medullary cells and produce a mucilaginous gel that fills the medulla.

Synonym (s)
Isymenia flabellata J. Agardh, 1899
(Homotypic synonym)
Halymenia agardhii De Toni, 1905
(Homotypic synonym)
Halymenia polydactyla Borgesen, 1932
(Heterotypic synonym)
Sebdenia polydactyla (Borgesen) M. Balakrishnan, 1961
(Heterotypic synonym)
Sebdenia agardhii (De Toni) Codomier, 1972
(Heterotypic synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Gujarat, Okha INDIA
• Gujarat, Dwarka Coast (Lat: 22.23) (Long: 68.97) INDIA
• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Gujarat INDIA
• Gujarat, Porbandar INDIA
• Gujarat, Veraval INDIA
• Gujarat, Dwarka INDIA

Literature Source(s)
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • (2006) Algaebase Available at -
  • Sahoo, D; Nivedita and Debasish (2001) Seaweeds of Indian coast S. B. Nangia, A. P. H. Publishing Corporation, New Delhi 283 pp Available at - NIO, Goa
  • Bolton, JJ; Oyieke, HA and Gwada, P (2007) The seaweeds of Kenya: Checklist, history of seaweed study, coastal environment, and analysis of seaweed diversity and biogeography South African Journal of Botany 73 76-88 Available at - NCL, Pune
  • Oza, RM and Zaidi, SH (2001) A revised checklist of Indian marine algae Available at - NIO, Goa
  • Silva, PC; Basson, PW and Moe, RL (1996) Catalogue of the benthic marine algae of the Indian Ocean University of California Press 79 1259 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Kobe University library Available at -
  • Bocas del Toro: Species database Available at -
  • Jha B, Reddy C.R.K, Thakur M C and Rao M (2009) Seaweeds of India The Diversity and Distribution of seaweeds of Gujarat Coast Springer 211pp Available at - NIO

Page last updated on:2012-12-12

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